I want to read an Excel sheet into a DataTable using an OleDbDataAdapter, however, I only want a section of the spreadsheet (the part that 'looks like a database').[code]
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Is it possible to store Excel sheet and it's corresponding rows into a Dictionary and then later retrieve the rows into a DataGridView depending on the selected Sheet name from a combo?
View 3 RepliesI have a little problem and i don't know e an excel sheet with with over 4000 rows and i need to go through that sheet and look at the length of each 1 cell and get the amount of characters in there and put that into another cell like below
[fixed]1
New cell10
[code].....
My requirement is to read all rows of an excel-sheet in first column that are not empty, are numeric and have a length between 15 and 20.
For example:
358218033354974
359473035499561
358218036156129
354022038366247
358218032490035
359473030516492
353210040325399
This column might have a header that is not numeric and there might be empty rows. This would cause an exception when importing them via SqlBulkCopy. So i want to prefilter the correct rows via OleDbCommand.
What I have tried so far is following(C# is also appreciated):
Using connection As New OleDbConnection(sExcelConnectionString)
connection.Open()
Dim schemaTable As DataTable = _
connection.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, _
New Object() {Nothing, Nothing, Nothing, "TABLE"})
[Code] .....
But this throws an exception if there are empty rows or the format of the value is incorrect. So my question is: How to restrict the rows of OleDbCommand to:
Get only first column of every worksheet
All values that are numeric
Skip empty values
Ideally only the values with a length between 15 and 20
Any way how to skip the empty rows, Or do I have to to select the whole datatable? I hoped it would be possible to do that only with one query because of performance reasons.
Exception While Reading Excel Sheet Drop Down Value...
View 3 RepliesI have Visual Studio 2008/VB application that opens Excel workbooks, reads all the sheets, and writes some data to a SQL database. I need an easy way to determine if a sheet has any data on it. By default most books has three sheets (Sheet1, Sheet2, Sheet3) and usually, but not always, my books have data only on sheet1. But i need to look at alal sheets to check for the existence of data. I know I can do a nested for loop from 1 to columns.count and rows.count, but that would take a good bit of time since those numbers usually are something like 256 and 65K.
Is ther some easy way to determine if there is any data on the sheet? If there is, is there an easy way to find the "first" cell with data in it?
I have some trouble with opening a excel sheet and getting some data out of it.
I want my program to have a button, when pressed, gives a "select excel file" popup and then load the data from some cells into my sql database.
So, when opening a excel file the program should get the data from cell D3 to D8 and put that into the sql database.
I now have the following, but that will only open the excel file.
Public Class Form1
Dim oConn As ADODB.Connection
Private Sub ConnectDB()
[Code]....
I have a vb.net app that I can read a .xls file into a dataset or loop through as oledbdatareader and it gives the same result.Some of the rows have all nulls when I loop through them but if I open the same file in Microsoft Excel I can see that row fine.[code]From the info above the first two SKU values would come through fine but when I get to the 3rd row it would show a null.Is it possible that it kind of inherits the first rows type and since the 3rd row isn't all numeric if nulls it? [code]
View 1 Repliesim looking for the method how can i copy from original sheet to my new sheet.
View 3 Replies[code] objExcelAppDataSheet is the excel application's object and strTemplatePath is the path of the excel file.This excel file is like a template that i am using in my application. In this file some cells are merged. After copying to the new sheet the formatting of the sheet does not remain same. Columns sizes are changing. Why this problems occurs? Is this MS office versions issue??
View 2 RepliesI have had this headache for a few days now. Thought I had sorted it but haven't.I have copied worksheets from an excel workbook into a dataset, with each a datatable for each worksheet.
I then use a DataGridView to Display and edit the datatable.DataGridview.DataSource = MydataSet.DataTable(0) sort thing.But for some reason I just cant figure out how to write the datatable back to the excel worksheet.I have this but Im probably barking up the wrong tree.
[Code]...
I have an Excel worksheet "Tax" that contains two columns: PK_Tax and Percentage a bit like this:
PK_Tax Percentage
0.05
[code].....
I have to provide an Excel file as an output. I have to color some of lines and make them bold.The input is based on a dynamic list (in memory) and it also could be based on CSV file that I'm already provide today (based on the same dynamic list).I'm wondering what would be the most efficient way (in terms of performance) in order to provide the colored Excel output?Should I export directly from dynamic list into Excel - or - Should I export from CSV into Excel ?
View 7 RepliesI am trying to create double and number format cells in excel using NPOI library. I used code like Dim cell As HSSFCell = row.CreateCell(j) cell.SetCellValue(Double.Parse(dr(col).ToString)) In excel numbers are aligning right but when I check format it is showing in "General" then I changed my code to like below
[Code]...
How to Eliminate duplicates in excel using macros and place it in another excel sheet The duplicate record must also be transferred.
View 2 RepliesSo I've got this Excel sheet of employees which have all the information about them. I'm trying to import this info into AD, but in order to do that I need to get the username for these users as well. And I would like vba code or vb.net code that basically takes the value of every row in column D and looks for it in AD and returns the username and adds it to column A. Would something like this be possible?
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How do I read in sheet 1 (MASTER) What I see if I open the excel file he has been saved while sheet 2 is visible
Using vb.net 2008 to create an Excel ss. I am trying to add a new sheet and it does but it puts it out of order. It puts it as the first sheet. I need it as the last one ( furthest to the right).
Code:
With xlWorkBook
.Sheets("Sheet1").Select()
.Sheets("Sheet1").Name = "config"
[Code]....
I have created a connection to an excel file. This is the code i created to select the data in the excel. But i want to make the [sheet1$] to be dynamic, which means it will get the sheet name depending on what is in the excel workbook. This workbook has only one sheet. This is to make sure that there will be no error when the sheet names are different. [code]
View 10 RepliesI have an Excel sheet that looks like this.
View 1 RepliesI am using VB 2008 to do some excel automation and I am stuck.I am trying to make the cell alignment to be left-top. When I programmatically insert a new worksheet, the alignment defaults to "left-bottom".
View 3 Repliesi have installed SQL server Express Edition 2005 by using my application i am saving data in tables which is created in SQL Server so that i have to copy in that data in to excel file
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comapre Two excel sheet using C#?
does anyone know how to transfer all the data's of datagrid to excel sheet? data's in my datagrid is not all come from my database/recordset... i have two columns of data's coming from textbox.
View 1 RepliesI have data exported from DataGridview to Excel Sheet but I have problem viewing the excel sheet until I log out of the Application completely. I have these code to release the link. What am I doing wrong?
'Save the workbook and quit Excel.
oBook.SaveAs(sSampleFolder & WrkSht)
oSheet = Nothing
[Code].....
I am sending some data from a datagridview to a Excel sheet.That works.But I have a problem with Date's , in the datagridview is 05-12-2012.When i put it in a new excelsheet it is 05-12-2012 00:00.I found something for changing the format of Date in a Excel cel.[code]But I need , 05-12-2012 What do I put after NumberFormat? I want to do it by code and not in the Excel sheet
View 2 RepliesI looked at some on here and found this:
Public Sub Test()
Dim xlApp As Global.Excel.Application
Dim xlWorkBook As Global.Excel.Workbook
[Code]....
I am trying to get excel sheet name here is my code but it throws an exception "Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index"
[Code]...
I have a datagrid which i manually entered value into. is there a way to get the value of the datagrid to a datatable or dataset
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